73623155225813 has 2 divisors, whose sum is σ = 73623155225814. Its totient is φ = 73623155225812.

The previous prime is 73623155225801. The next prime is 73623155225869. The reversal of 73623155225813 is 31852255132637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37953509852164 + 35669645373649 = 6160642^2 + 5972407^2 .

It is a cyclic number.

It is not a de Polignac number, because 73623155225813 - 2⁶ = 73623155225749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73623155225513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36811577612906 + 36811577612907.

It is an arithmetic number, because the mean of its divisors is an integer number (36811577612907).

Almost surely, 2^{73623155225813} is an apocalyptic number.

It is an amenable number.

73623155225813 is a deficient number, since it is larger than the sum of its proper divisors (1).

73623155225813 is an equidigital number, since it uses as much as digits as its factorization.

73623155225813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072000, while the sum is 53.

The spelling of 73623155225813 in words is "seventy-three trillion, six hundred twenty-three billion, one hundred fifty-five million, two hundred twenty-five thousand, eight hundred thirteen".